I've signed up for the partnership program, but I don't see the smiley face graphic next to my search listing when I search. Why not?

You have to have at least one point (click-through) for the smiley face graphic to appear. Since points are only updated once per day, even if everything is set up properly and you have clicked through yourself, you won't see the smiley face until the next day. If it has been at least one day since you set up the link and clicked through, click the "Update Settings" link in the menu and check that you have the base URL setting correct.